Book Image

Gradle Effective Implementations Guide - Second Edition

By : Hubert Klein Ikkink
Book Image

Gradle Effective Implementations Guide - Second Edition

By: Hubert Klein Ikkink

Overview of this book

Gradle is a project automation tool that has a wide range of applications. The basic aim of Gradle is to automate a wide variety of tasks performed by software developers, including compiling computer source code to binary code, packaging binary codes, running tests, deploying applications to production systems, and creating documentation. The book will start with the fundamentals of Gradle and introduce you to the tools that will be used in further chapters. You will learn to create and work with Gradle scripts and then see how to use Gradle to build your Java Projects. While building Java application, you will find out about other important topics such as dependency management, publishing artifacts, and integrating the application with other JVM languages such as Scala and Groovy. By the end of this book, you will be able to use Gradle in your daily development. Writing tasks, applying plugins, and creating build logic will be your second nature.
Table of Contents (18 chapters)
Gradle Effective Implementations Guide - Second Edition
About the Author
About the Reviewer

Setting default tasks

To execute a task, we use the task name on the command line when we run gradle. So, if our build script contains a task with the first name, we can run the task with the following command:

$ gradle first

However, we can also define a default task or multiple default tasks that need to be executed, even if we don't explicitly set the task name. So, if we run the gradle command without arguments, the default task of our build script will be executed.

To set the default task or tasks, we use the defaultTasks method. We pass the names of the tasks that need to be executed to the method. In the following build script, we make the first and second tasks the default tasks:

defaultTasks 'first', 'second' 
task first { 
    doLast { 
        println "I am first" 
task second { 
    doFirst { 
        println "I am second" 

We can run our build script and get the following output:

$ gradle
I am first
I am second
Total time...